Question6 ofThe Department of Education would like to test the hypothesis that the average debt load of graduating students with a bachelor's degree equals $17,000. A random sample of 34 students had an average debt load of $18,200. It is believed that the population standard deviation for student debt load is $4,200. The Department of Education would like to set α = 0.05. The critical value for this hypothesis test would be ________.
40
-1.96± 1.6451.645

± 1.96
Question7 ofSony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of an Xbox user. A random sample of 32 PlayStation users had an average age of 33.7 years while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.7 and 3.5 years, respectively. Sony would like to set α = 0.05. The critical value for this hypothesis test would be ________.
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Question8 ofSony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of an Xbox user. A random sample of 32 PlayStation users had an average age of 33.7 years while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard deviation for the age of PlayStation and Xbox users is 3.7 and 3.5 years, respectively. Sony would like to set α = 0.05. If Population 1 is defined as PlayStation users and Population 2 is defined as Xbox users, the test statistic for this hypothesis test would be ________.
40
Question9 ofThe federal government would like to test the hypothesis that the average age of men filing for Social Security is higher than the average age of women filing, using α = 0.05 with the following data:If Population 1 is defined as men and Population 2 is defined as women, the test statistic for this hypothesis test would be ________.
40